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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
11/x = 9.32 // - 9.32
11/x-9.32 = 0
11*x^-1 = 9.32 // : 11
x^-1 = 0.84727273
-1 < 0
1/(x^1) = 0.84727273 // * x^1
1 = 0.84727273*x^1 // : 0.84727273
1.18025751 = x^1
x = 1.18025751
x = 1.18025751
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